Finding the Fourth Proportional to 21,983.73, 30,348.06 and 12,550.47

Step by Step Solution

1. Step 1: Write the proportion equation
   21,983.73 : 30,348.06 = 12,550.47 : x
2. Step 2: Convert to fraction form
   21,983.73/30,348.06 = 12,550.47/x
3. Step 3: Cross multiply
   21,983.73x = 30,348.06 × 12,550.47
4. Step 4: Simplify right side
   21,983.73x = 380,882,416.59
5. Step 5: Solve for x
   x = 380,882,416.59/21,983.73
6. Step 6: Final answer
   x = 17,325.65